“It works but may not be good enough on its own.
During some heavy computation Pi 5 can go up to 56.0'C, with an extra external fan you can get the temperature of the Pi 5 down to 46 .0'C.
So I think on its own its good but needs help.
I am also not sure about the impact of a case on this. I am using a piBow, will need to investigate some more to be able to tell.”
“It is a great product that is very well-engineered and easy to install. No software is required, just the most up-to-date version of Raspberry Pi OS.”
“The Raspbrry Pi 5 Official Active Cooler is easy to mount on the Raspberry Pi 5 and seems to be doing it's job. I haven't measured any temperatures, but I haven't encountered any high temperature problems either.”